Motor-plow.



L. S. HACKNEY.

MOTOR PLOW.

APPLICATIONHLED AUG.14, 1911.

Patented July 2, 1912.

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L. S. HACKNBY.

MOTOR PLOW.

APPLICATION FILED AUG. I4, 1911.

1,031,062. Patented July 2,1912.

3 SHEETS-SHEET 2.

Itven'r Leslie 3 .Hackney L. S. HACKNEY.

MOTOR PLOW.

APPLICATION FILED AUG.14,1911,

1,031,062. Patented July 2,1912.

3 SHEETS-SHEET 3.

leslie 5, facne bg any LESLIE S. HACKNEY, OF ST. PAUL, MINNESOTA.

. MOTOR-PLOW.

Specdcatiou of Letters Patent.

Application ma august 14, 1911. serial No. 643,922.

Patented July 2, 1912.

To allr whom it may-concern:

' Be it known that I, LE'sLiE S. HACKNEY,

a citizen of the United States, residing at St. Paul, in the county of Ramsey and Statei of Minnesota, have invented new and useful Improvements in Motor-Flows, of which the following is a specification.

. My invention relates to improvements in motor plows. Its object is to provide a-device of this class having its plows flexibly attached to the frame, adjustable thereon and detachable therefrom.

, A further object is to provide such a machine with-,plows adapted to be raised by hand and power, and with means for limitin the working depths of said plows.

In the drawings, Figure 1 is a side elevation of my improved motor plow; Fig. 2 is a plan view of the same, with the engine hood removed; Fig. 3 is a side elevation in detail showing part of the plow adjusting showin mechanism; Fig. 4 is a plan view in detail another part of said mechanism; Fig. 5 1s a sectional view taken on the line 5--5 of Fig. 4; Fig. 6 is a detail sectional Kview taken-on the line 6 6 of Fig. 2; Fig. 7

is an en d elevation in detail showing part of the mechanism for raising and lowering thetplows; and Fig. 8 isa side elevation of laeferring to the accompanying drawings,

' I have used the reference numeral 10 to indicate the main frame. The traction i -wheels 12 are arranged to support the forward end of the frame and the steering wheel 13'to support its rear end. The power shaft 1.4 is revolubly mounted on said frame and is driven by a motor thereon. The draw bar 15 is suspended below the frame l10 and is rigidly Aattached thereto by the brace rods 16, said bar .15 being arranged between the wheels 12 and 13 in a diagonal position relative to the rame. Y

The plow beams 17 are connected to the bar 15 and are adjusted in the following delscribed manner: Thedraw bar 15 is pro vided with brackets 18 having rearwardly extending arms 19 with vertical bearin plates 20 thereon, each plate being formed with' a groove 21ron-itsinner`face The f plow 'beams v17 are provided ,at their forward ends with* yokes '22, each yoke having vertical'bearmg plates'23 on its arms 24 Vand horizontally arranged pins 25 extending through and beyond said plates. The pins 25 protrude, from the plates 23 into the verti-i cally arranged grooves 21 in the plates 2O and furnish an adjustable connection for the plow beams. The plates ..23 tit closely within the lates and prevent lateral motion of said beams. -The forked arms 26 engage the pins and are rigidly attached to the shaft 27 whichis revolublymounted on the draw bar 15. The worm sector 28 on the end ofthe shaft 27 meshes with the.

means of the power and hand driven spool 35 is loosely mounted on the shaft 14, and the cable 36 is wound at one end on said spool Aand at its other end about the drum 37 on the shaft 32. The rotation of the spool in one direction causes the windin of the cable 36 on said spool and the win in of the cables 34 on the drums 33, thus raisln the plows, while the'rotation of said spool 1n the opposite direction .permits the unwinding ofsaid cables, thus lowering the plows.

Means are provided whereby the plows may be raised by the operator as follows: The spool 35 is furnished with a drum 38 and ratchet 39. The collar 40 is loosely mounted on the drum 38 and supports the dog 41. l This dog is connected by the rod 42 to lowerthe plows. Means are also provided whereby the plows are raised by power from the motor. The collar 45 having a recess 46 in its face is loosely mounted on th shaft 14 and -is held from rotation thereo arm 47 which is fixed to the frame 0. The

collar 48 having a cam 49 conform ng withby the4 pedal 52. The clutch driving member 53 feathered on the shaft 14 lis held by the spring 54 from engagement with the clutch driven member 55 on the spool 35 and in a posit-ion adjacent to the collar 4S.- The movement of the pedal 52 rotates the cam collar 48. The movement of the cam 49 in the fixed recess 46 causes a lateral 'separation of the' collars 45 and 48 when the latter is rotated on the shaft- 1.4 and causes the engagement of the clutch members 53 and 55 against the action of the spring 54, whereby the spool 35 is revolved to raise the plows. The spring,r 54 returns the collar 48 to its normal position and disengages the clutch members 53 and 55 as the pedal 52 is released. Y

A- safety stop to limit the upward movement. of the plows when raised by power is provided and comprises a bell crank 56 pivotally connected to the frame 1'0. Said crank is arranged with one crank arm 57 in the path of the arm 50 on the cam collar 48` and its other crank arm in the path of one of the plow beams 17. lVhen thearm v58 is moved upward by said plow beam the crank arm 57 strikes the arm 50 and moves thel cam collar back into its normal position against the pressure on the pedal 52 brought to bear by the operator in raising the plows, thus disengaging the clutch members 53 and 55 to stop the rotation of the spool The plows fall by `f gravitywhenl released and their movement is controlled by the following described mechanism: The dog 44 which prevents the rotation of the spool 35 in a direction to lower the plows is con-.-

nccted by the rod to the pedal 60. The outerperipliery of the clutch driven member 55 forms a drum 61 and on this drum is mounted the brake shoe 62, having a slot 6T. The rod 5t) which is connected to the dog 4t extends into this slot 621. The springr 63 within the shoe 62 engages the rod 59 and yieldingly holds said shoc.in

position on the drum 61 and the dog 44 in engagement with the ratchet 37. slight movement of the pedal discngages the dog ftt fromthe ratchet 87 and releases the plows, while a further movement of said lever engages said brake shoe with the drum (i1 to control the speed of the plows in their downward fall.

l have provided means for limiting;` the downward movement of the plows. The cable 64 is wound at one end about the drinn 65 on the shaft 32 and is comiected at its other end to a spring 651. The attachment of the cable 64 to the drum 65 is such that the rotation of the shaft 32 to lower the plows turns` said drum in a direction to wind said cable. The spring 65a which is fixed to the frame l0 keeps the cable 61l taut regardless otl the rotation ol' the rlrum 65. The clamp 66 on the cable 64 moi Supports .are provided for yieldingly holding each of the plows in their operative f positions. Said supports are identical in construction and the description of one will answer for all. The support comprises an upper link 7l and a lower link 72. These links arc of thclink 71 being carriedV by the stub shaft 74 on the frame 10 and the opposite end of the link 72 being pivotally connected toa plow beam 17. are folded toward cach .other when the plows are elevated and extended .when the plows are lowered. The stop 75 on the lower link 72 is provided to' engage the "upper link-71 and prevent the extreme extension ot' Vsaid links and the consequent aline-ment of their centers. Each of the stub shafts 74 is providedwith an arm 76 which is connectedby va Spring 77 toa secondaria 78 at the forward end of the frame.. The. arm 7S is formed with a series of apertures 79, each aperture being adapted to receive the spring 77. *This spring tends to extend the support. Any upward movement of said support either by the inequalities of the ground 01 by the-hand and power lift is-accomplished against the action ofsaid spring.

The tension of the springs 77 is adjusted simultaneously by' the rotation ofthe shaft 8O ou which the arms 78am mounted.l This shaft isprovidcd with an upright arm 8l which is connected by the rod 82 to the lever 83. Said lever S3 rotates the shaft 8O to the position desiredA and locks the same in such position. 'lhe springs 77 may also be adjusted separately by attachingr them in different apertures of their respective 'arms 78.

In operation the plows may be lifted by the manipulation of the, hand lever and also by' power from the motor by pressure on the pedal 52. The. plows arereleased from their elevated The links 7l and 72- pivotally connected at 73, one end fall controlled by the movementof the pedal The workingr depthf of the plows is limited by the adjustment of the stop 69 in the support 68. Said plows are adjusted vertically at their forward ends by the manipulation ot the hand wheel 30 and the pins 25'are removed from the grooves 2l by the forked arms 26 on further.movement ot said wheel, thus detaching the plows from the frame. Thc'tension of the springs 77 which operate lthe .supports to vvield-inglli.v hold the plows in their operative positions is increased or din'iiuishcd bv the movement of the hand lever 8?.. The 'tension ot' eri-wh individual spring may also be altered by changing its point of connection with its arm 78.

Having described my invention, what I claim new and desire to protect by Let ters Patent, is:

l. In a device of the class described, the combination of a frame having sniriporting wheels, a draw bar carried by said frame. brackets on said draw bar, plow beamsr slidably mounted atI their forward ends' in said brackets and capable of vertical movement therein, plow bodies on said beams` and means for simultaneously adjusting said beams in said brackets and for detaching the same therefrom.

S'.. in a device of the class described. the combination of ay frame hafvi ig supporting wheels, a draw bar carried by said frame, brackets on the draw bar having guide plates with a vertical groove in each, plow beams carrying plow bodies, yoles on said beams having guide plates adapted to lit within said rst mentioned plates to prevent lateral movement of said beams, pins in said plates adapted to engage, and travel in said grooves, a shaft revolnble on the draw bar, forked arms on said shaft in engagement with said pins and means for rotating said shaft-to rais(` and lower the forward ends of said plow beams.

fl. ln a plow of the class described, the combination of a frame having` supporting wheels, a draw bar carried b v said frame, plow beams carryi plow bodis transverse horimmtal pivote slidiflil' v rtifalb said bei' and connectoia' thc same withY llas :ilitl l oils ffii sin?,

v tfinioilslv :so

pstingj .said pivot` to vary and le w Hilo a f`l to detach e Vl. ln a dei cc fo' the class' dcscribaa'l. the ffoizibination of a frame having' supporting vl'fccla, a draw 'iar i winged diagonally bi yath said frame, plow beam arriving plow -:oklies` braclxts on .-:fz=l bar having vertical gg Voovcs tbl-rein. tran- ;erse pivots sli-:trible in said Ig'rtioves and wfinnrcfinf; said brackets and beams and naam for adjusting said pivots in .said grooves and dctaching the .sanar` therefrom. A

Y. ln a plow et' the class' described. the combination of a frame havin,f snpportinrr n heels. a draw bar carried b v said frame. plow beams carryingr plow bodies. transvere horizontal pivots, slidablc vertically on said bar and connecting the same with the i-:cvcral plow beams, arms dctachablv connected with said pivots and mean-s for sinnzltanclnslv operating said arms lo var v thtI .vorliing' depth of the glow 'bodies and to detail] said beams Vfrom vsaid bar.

t'. ln a device of the class described, the combination of a frame, havinzcr simporlinpy nhccls, a draw bar carried by said frame,

lim

depth ot' thv` plow bodiesl i V"han said bar.

plow beams connected at their forward ends with said bar, plovl7 bodies on said beams and means for simultaneously adjusting said beams on 0r (letaCrhing` the same from said bars.

7. In a plow of the class described, the combination 0f a frame havinrr supporting wheels, a draw bar arranged diagonally be neath said frame, plow beams carrying plow bodies, transverse pivots slidable vertically upon said bar and connecting the same with the several plow beams, a shaft parallel with said bar and in operative connection with said transverse pivots and means for rotating said shaft..

8. In a plow of the class described the combination of a frame having supporting wheels, a draw bar carried by said frame, plow beams carrying plow bodies, transverse pivots slidable vertically upon said bar and connecting the same with the several plow beams. arms pivotally and slidably connected with said transverse pivots and means for operating said arms to raise and lower said beams.

9. ln a plow of the class described, the combination of a frame havingr supporting wheels, a draw bar arranged diagonally beneath said fame, plow beams carrying plow bodies, transverse pivots slidable vertically upon said bar and connecting the same with the several plow beams, a shaft parallel with and revolnblc on said bar, arms on said shaft pivotally and slidabltv connected with said transverse pivots and means for rotating said shaft. to aise and lower said bea ms.

lli'A The combination of a draft frame, a draw ba r arranged diagonally on said frame, plow beams carrying plow bodies. transverse pivots slidahle vertically apo.: said bar and connecting the same with the several plow beams. a shaft parallel with said bar and in operative connection with said trans verse pivots and means for rotating said shaft.

ll. The combination,of a draft frame. a draw bar arranged diagonally on said frame. plow beams carrying' plow bodies. transverse pivots slidable npon said bar and connectingr the same with the several plow beams. a shaft parallel with said bar. arms` on the shaft pivotally and slidablv connected with said transverse pivots and means for operating said shaft.

l2. ln a devicer of the class described. the combination of a frame having;r snpihortingh wheels` a draw bar carried by said frame` plow beams having their forward ends slidable vertically on said bar. plow bodicL4 on said beams. a revolnble shaft. arms on said shaft in connection with said beams, and means for rotating;r said shaft.

13. ln a device of the class described, the combination of a frame having supporting CII wheels, a draw bar carried by said frame, plow brains having their forward ends movabltion and detachablel Vfrom said har, plow hodios on said beams, a rcrohlblc shaft on said har, arms on said shaft dotat'hably connected with said beams, and moans for rotating' said shaft to simultanvonsly adjust said beams on said har or detach the'same tlnfrofrom.

14. In a drtit'o of the dass dvscrihod, the vmnhination ot a frame. having slippprtinn' whack. a dran har on said tramo. piow brains haring tta-ir forward onds movabh on said liar, a rwvohdihl shaft on tht` har, armsy on said ,shaft connected with said beams` and moans tor locking said shaft and for rotating' thv samt to adjust said brains on said har or dctath the same thcru't'ronl.

t t t l 15. In a device of tho combination o a frame having supporting wheels, a draw bar 0n said frame, piow beams having their forward @nds-movable on said bar, plow. bodits on said beams, a rovohiblo shafton said har, arms on said shaft connected with said beams, a gear on the shaft, a second gear in mesh with said firsty mentioned gear, and a hand operated shaft for turningl `said sot-ond montioncd gear to rotatt` said first mcntiontd shaft.

In tostimony wht-roof, l haw sigmd my namo to this Apacification in tho plaisance of two snbsrrihing itnossesl LESLIE S. IICKNE Y.

dass described, the

'itnossos:

Asi i lan' C( WFMAN, Louis JonNsoN. 

